Reliability of power output during dynamic cycling

Document Type

Journal Article


Georg Thieme Verlag


Computing, Health and Science


Exercise, Biomedical and Health Science, Centre for Exercise and Sports Science Research




This article was originally published as: Abbiss, C. R., Levin, G., McGuigan, M. R., & Laursen, P. B. (2008). Reliability of power output during dynamic cycling. International Journal of Sports Medicine, 29(07), 574-578. Original article available here


The aims of the present study were to determine the influence of familiarization on the reliability of power output during a dynamic 30-km cycling trial and to determine the test-retest reliability following a 6-week period. Nine trained male cyclists performed five self-paced 30-km cycling trials, which contained three 250-m sprints and three 1-km sprints. The first three of these trials were performed in consecutive weeks (Week 1, Week 2 and Week 3), while the latter two trials were consecutively conducted 6 wk following (Week 9 and Week 10). Subjects were instructed to complete each sprint, as well as the entire trial in the least time possible. Reproducibility in average power output over the entire 30-km trial for Week 2 and 3 alone (coefficient of variation, CV = 2.4 %, intra-class correlation coefficient, ICC = 0.93) was better than for Week 1 and 2 (CV = 5.5 %, ICC = 0.77) and Week 9 and 10 alone (CV = 5.3 %, ICC = 0.57). These results indicate that high reliability during a dynamic 30-km cycling trial may be obtained after a single familiarization trial when subsequent trials are performed within 7 days. However, if cyclists do not perform trials for six weeks, the same level of reliability is not maintained.




Link to publisher version (DOI)